HYDROS DC Solenoid Valve

[archgetty]

My RO/DI reservoir has a float valve and automatically refills. It has a longish tubing to the tank area, where a dosing pump pulls the water from the reservoir as needed.
I would like to use a leak detector under my aquarium where the dosing pump is, so if one of these lines leaks, the solenoid would close and stop further water coming in.
So I would set up the solenoid normally open, then it would close if/when the leak detector trips. My question: is it OK to run the HYDROS DC Solenoid Valve normally open without burning it out or other issues?

 

[Danny]

My RO/DI reservoir has a float valve and automatically refills. It has a longish tubing to the tank area, where a dosing pump pulls the water from the reservoir as needed.
I would like to use a leak detector under my aquarium where the dosing pump is, so if one of these lines leaks, the solenoid would close and stop further water coming in.
So I would set up the solenoid normally open, then it would close if/when the leak detector trips. My question: is it OK to run the HYDROS DC Solenoid Valve normally open without burning it out or other issues?

I would not use a solenoid in the powered mode for very long. I am not sure why you would need a solenoid for this. Can't you just turn the pumps off if a leak is detected. I have my pumps in the garage with my storage tanks the tank is 35ft away and the tubing is run through the attic in PVC conduit. So if there is a leak it will leak at either end of the conduit. I use 1/4" tubing like the RODI tubing. So far after 6 years the only leaks were in the tuning in the dosing pumps and since the pumps are higher than either the sump or the storage tanks very little leaks. The pumps just quit pumping. I do use dosing pumps for ATO and AWC so that may make a difference. The longest I have had a solenoid on at a time is to refill the DI storage or mix tank with DI and that is less than 5 hours.

 

[archgetty]

Thanks for the quick reply. Turning pumps off is no problem. My problem is that the ATO reservoir is higher than the sump and dosing pumps, so I'm worried about a tubing connection leak and gravity siphon into the area below the tank.

 

[Danny]

Can you get the pump higher than the reservoir. I empty my ATO into my overflow box at the tank instead of the sump. All my dosing pumps for doing this are in the garage above the reservoirs. Here is a couple of photos. The pumps are on the right side of the controller board in the garage behind my workbench. The reservoirs are under the workbench. One pump head on the AWC pump does pump freash salt water and empties it into the return section of the sump. the other pump head draws water from the refugium section in the sump and empties it in the drain for the kitchen sink. The solenoids in the upper right control flow to and from the RODI unit. I have had tubing for the ATO and the AWC pumps split before but they leak very little water. Normally my ATO catches the issue with either the AWC or ATO pump. I will end up getting an alert for either max on time exceeded or max off time exceeded. It has never put any water on the floor to set off the leak detector but the pumps are high enough that there would be very little leaking out. I have check valve in the output of all the pumps. I added one to the tubing at the sink drain and also added one to match in the output of the fill side of the AWC. I added it to the output of the ATO since I also dispense All For Reef into the same tube that the ATO uses so All For Reef pump also has a check valve.